The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 2024
Filed:
Apr. 03, 2020
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei, CN;
Jiajia Luo, Hubei, CN;
Shuxing Yan, Hubei, CN;
Abstract
A thermally activated delayed fluorescence green light polymer material and an organic electroluminescent device thereof are provided. The thermally activated delayed fluorescence green light polymer material is based on a boron-containing structure, an overall charge transfer strength is adjusted through different electron donor units, so as to synthesize a series of green light thermally activated delayed fluorescence materials with low single-triplet energy level differences, high luminous efficiency, and fast reverse intersystem crossing constants, while realizing the fine-tuning of the electron-donor ability of the electronic donor unit to make the spectrum fine-tune.